Cotton-gin.



E. PHELPS.

COTTON GIN.

M'rLmATIoN FILED JAN. zo, 19m.

Patented Apr. 2, 1912.

Suma/M' L/w UNITED sTATEs PATENT OFFICE.

FRANK PHELPS, OF WELLSTON, OKLAHOMA, ASSIGNOR TO THOMAS GIN lCOli/[PRESS COMPANY, OF LITTLE ROCK, ARKANSAS, A CORPORATION OF NEW JERSEY.

COTTON-GIN.

Specification of Letters Patent.

Patented Apr. 2, 1912.

Application led January 25, 1907. Serial No. 354,077.

To all whom it may concernf Be it known that I, FRANK P'HELPS, a citizen of the United States, residlng at Vellston, in thecounty of Lincoln, State of Oklahoma, have invented certain new and useful Improvements in Cotton-Gins; and I do .hereby declare the following -to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and use `the same.

' my prior U. S. Patent No. 809131, dated `January 2,' '1906, and may be considered an improvement thereof. lnsaid patented machine, the trash, motes, etc., are ejected by centrifugal action from exposed portions of the sawsvinyan open space or chamber directly back of the saws, and fall or settle by gravity into a trough or receptacle at the bottom of such space or chamber, whence they are carried off by a suitable conveyer.

Without essentially restricting my improvementto the specific constructions illustrated, the invention will hereinafter be fully described by reference to the accompanying drawings, which form a part of this specification, and then more particularly pointed out in the claims following this description.

In said drawings, Figure 1 is a sectional perspective View of a cotton-gin embodying my invention. Fig. 2 is a detail view. Fig. 3 is a cross-section of a gin having my invention embodied therein in another form. Fig. 4 is a view similar to Fig. 3, showing still another form or embodiment of the in- Vention.

The naar A indicates. the rou-box, in

which the untreated cotton is engaged by the revolving saws B, the latter drawing the cotton through or between' the bars of the breast-plate or grating C, thereby' separating the cotton in the usual way, the seeds being retained in the roll-box and suitably disposed of, while the cotton fiber or lint adheres to the saw-teeth. Back of the breast-plate, the saws are exposed in an open space or chamber D, wherein the dust, motes Vand waste lare ejected from the lint on the saws by centrifugal action, and fall or settle by gravity into a longitudinal trough or channel E having a conveyer F therein for carrying oft' the trash. Said trough E, constituting the bottom of the settling-chamber divider-board G, adjacent to the perimeters of the saws approximately back of the axis of rotation thereof. As explained 4in the specification of my aforesaid patent, the divider-board G has a curved or concave front face approximately conforming to and disposed close to the pcripheries of the saws; while the opposite or rear surface of the divider-board slants downwardlyfrom .a sharp edge at the top and into the aforesaid collection and settling of trash, motes, etc., by causing every particle thrown from the saws to slide down the back of the divider# board to the conveyer.

For removing the lint from the saws, a lint-chute H has its' mouth J arranged to inclose the lower back portions of the saws, just below the diriderboard.G; and an airblast coming from atube or casing K, having a contracted lchute L adapted to discharge at'or into the mouth'of said lintchute, strikes approximately tangentially the peripheral portions of the saws exposed in the mouth .I of thelint-chute, thereby blowing oif the lint from the saw-teeth, vwhich latter point in the same direction as the motion of lthe air-blast. The air-tube K may be in communication with any suitable form of pneumatic blower or fan, asindicated at M, to create the necessary blast. The lint-chute H may discharge on to a conveyer, or into any suitable receptacle, the air-currents created by the aforesaid airblast blowing off the lint through said chute, or the said chute may communicate with a suction-tube, as well understood. In Fig. 3 H1 indicates such a suction tube and H2'the D, is formed behind an upright longitudinal channel or trough E, thus facilitating the` Ypasses under the dividerlian or other devi-ce for inducing the current.

V metal, bent to provide the aforesaid dividerboard and channel, while the lower side of said tube is carried up into the space between the front and rear walls of the divider-board, thus providing a narrow or contracted inverted U-shaped mouth for the discharge of the air-blast onto the peripheries of the saws.. The lint-chute H may also be of sheet-metal.

In Figs. 3 and 4, the conveyer-channel or troughE is shown formed in a woodenblock, the front side of said channel constituting the divider-board Gr, as shown in the drawings of my aforesaid patent. In these cases, the discharge-chute L of the air-tube K oard. In Fig.4 4 the air-tube K is located ack of the conveyer, and has a narrow or contracted discharge-chute passing. thereunder and com-Y municatin with the upper side of the mouth J of the l1nt-chute. In Fig. 3, the air-tube K 'is arranged below the conveyer-trough E. In this case, the tube E comprises a cylinder rolled in the form of an involute curve, leaving a narrow or contracted discharge passage into the mouth of the lint-chute just below the divider-board and conveyer.

In order to concentrate the air-blast on the saw-teeth, and prevent the air-blast from wasting or passing between the saws,

a seriesof triangular or wedge-shaped par-' titions maybe arranged in the discharge- .air-blast on the teeth.

passage L from the air-tube K, as indicated by the letter Z in Fig. 2. Said Fig. 2 shows the 'partitions on an enlarged scale. They are small wedge-shaped .pieces spaced apart at intervals corresponding to the spacing of the saws; the air passes through them in the direction indicated 'by the arrow, and the exit of the air isbetween the broader ends of the partitions, adjacentto the peripheries of the'saws, thus concentrating the It will be observed that the structure for providing the stripping blast, consisting of the air chamber and lint Hue into which it discharges through the contracted.v blast chute or nozzle, may be considered as constituting a conduit through the wall of which the saws project, said conduit being divided by a partition into two chambers, that is the air chamber K and lint chamber II, between which current is created so as kto be directed lagainst the perimeters of the saws transversely of the gin cylinder. It will also be observed that in Figs, 1 and 3 the portions of the saws 'from which the lint is stripped by the blast are arranged between the terminals of the upper wall of lower or outerv wall ofthe blast nozzle is formed by the upper wall ofthe lint throat which provides a surface adjacent to and confronting the saws which the blast follows and thus eectively strips the lint..

I claim as my invention and desire to secure by Letters Patent:

1. A cotton gin, including a conduit, through the walls of which the saws are arranged to'project, a partition dividing the conduit in two chambers, and means for creating an air current between the chambers to be directed against and transverse the saws. v

2. A cotton gin, including a. conduit, through the walls of which the saws are arranged to project, a partition dividing the arranged to direct an air-blast approxi- `mately tangentially onv the peripheriesof the saws,and a series of wedge-shaped par-` tit-ions arranged in the exit-chute of the airchambernear or adjacent to' the mouth of the lint-receptacle and adapted to concentrate the air-blast upon the peripheries of the saws. v

4. In a gin, the combination with the saws, of a lint-chute or receptacle hav'ing its mouth adjacent to peripheralportions 'of the saws, and asheet-metal air-'tube'having a contracted exit-chute extending from one side thereof and arranged to discharge into the mouth of said lint-chute and to direct an air-blast approximately tangentially on the peripheries of the saws, the upper survide a longitudinal trash-receptacle and diportions of the saws, and

ios

vider-board adjacent to the backs or the saws, and the lower surface thereof terminating Vin the space between the dividerboard and trash-receptacle, leaving a narrow exit-passage for the air-blast.

5. In a gin, the combination with the saws, of means including an air chamber arranged behind the lower portions of the saws and having a generally involute form to provide a nozzle for applying a stripping blast to the under portions of the saws.

6. In a gin, the combination with the saws, of an air blastv stripper incl 'ding a' blast nozzle and lint throat into wh ch it delivers,

ias

ing adjacent to the saws, and the lower wall of the blast nozzle being constituted bythe upper wall of the lint throat.

imity to and confronting the saws, provid' ing a surface for directing the stripping blast. v

y8. In a gin, the combinationwith the saws, of an air blast stri per including an air -chamber having a b ast nozzle arranged to` direct the stripping blast approximately tangentially to t e peripheries of the saws,

one wall of the blast nozzle terminating adjacent to the 4saws and the other continuing in proximity thereto.

9. In a gin, the combination with the saws, of an air blast stripper including a blast nozzle and lint throat into which it delivers, the saws being inclosed between the ends of one wall of the nozzle and one wall of the lint throat, there bein acornmon artition which provides the oxer wall of oth the 'nozzle and lint throat.

In testimony whereof I aix my signature, in presence of two witnesses.

` FRANK PHELPS.

Witnesses:

R. C. KENNEY, L. P. KING. 

